Knitting-machine needle.



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4KNITTING MACHINE NEEDLE.

APPLICATION FILED Auast. 1914.

Patented Apr. 11, 1916.

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Lig/8,68% i.' Specicatcn of Letters Patent Application leaa'ugust si, Y1am. serialize. 859,348. A y.

To ail 'whom it may concern.' y

Be it known that I, RoERrVV. SCOTT, a

citizen of the United States, and resident of at ,the other end, is formed ,by a'V forward,

Boston, in the county of Suffolk and State 'bend'. 3 of the 'wire blank. The-wireof I of Massachusetts, have invented certain new which ltheneedleismade is originally of a` and useful Improvements in Knitting-lilla# sizeto permit the? flattening of'thebutts 3f chine Needles, vof which the 'followingis av andthe lowerend-of'th'e shank t to the pro-v f specification. portions shwn, [they body ,bfthe 'shank The object of my inventionis to'k providef 'proper 1 andthe pointvsection 2 being'aft'eran independently movable needle, of any'A 'ward reduced tothe 4same lateraldimensions known type with respect to its yarnen'gag as the butt?) and "the bfottomflQV It will be ing parts, with eiiicient and practical .means *seen thatv these operations." provide the for frictional engagement with'the groove densest'a-nd most 1 compressed metal-in the in whichit is operated.

am awareof friction devicesof the prior thefniostV strain.l y

' art to permit the needles to stand at the""-`-1l` rov'1de'a yfriction`-tongue'f5 .lwithout tive thrust of the last cam to actuate them, making 7a shear vc'ut longitudinally'bf the 'structure the vpartys; 3 l-and 4,"where` there is i o point in their grooves attained by the posi- 'weakening'fthe'remainder"o'fithe'needlebyf v including 'such' devices as setting an imenlarged` bottom portion'.4 fof' the' needlev pressed lateral bend in the ent'ire 5shank of shank. This operation may be performed.. Such strucby' dies accurately` locating 'the cut'b, which" the needle, or locall vtherein. tures are objecticna'blefas tending@ to cause may be in'J the plane ofthe front face "ofthe projected needles to occupy a pathy out ofmshank' l. ,'IIhe,cuttingv die mayalf! impress line with their grooves. Other deviceswi'th "inthe friction'toiigue 5 a bend or lonvekity which l am familiar involve the making'of such as is shown in Fig. 1, at the same operaspecial bends or turns in the shank of the tion; but for some uses prefer the form wire blank of which the needle is usually, shown in Fig. 5 in which the partially deand in the best practice, made. Under contached portion 9 of the enlarged lower part ditions of high-speed machines and fine neeof the needle is left straight, but bent at an dle gages the durability of the needle and' angle to the plane of the remainder of the constance of the friction in its groove is a needle.

matter of importance, while sharp turns or short impressed bends in the wire blank decrease durability. y

My new device utilizes a well-known form ofhigh-speed wire blank needle without necessitating any bending of the blank which might injuriously affect its strength.

In the accompanying drawings, Figure 1 is a front elevation; and Fig. 2 is a side elevation of a latch needle of a well-known type embodying my new device; Figs. 3 and 4: are respectively similar views of a Inodified form; Fig. 5 is an elevation of the butt portion of a needle showing another form of the device; Fig. 6 illustrates a hook and spring beard which may be employed with any of the remaining devices; and Fig. 7 is a view similar to Fig. 5 of a further modification.

The Shanks 1 of the needles may be formedv as usual of a drawn steel wire terminating at their upper ends in the swaged or reduced portion 2, ending in' a hook, whether the The partially detached portion for the spring tongue may be reduced in thickness, as shown in the drawings, to provide suflicient resiliency. This may be done before or after it is sheared ofi', and may be effected by milling Vaway a part of the thickness of the area to be separated, or by a swaging operation simultaneous with, before, or after the shearing operation. y

For some purposes I prefer to form the tongue in the plane of the shank l, and in this case the structure may be that shown 'in Figs. 3 and 4, in which the friction tongue 8 is slieared away from the remainder of the enlargement 4 on the line 7 entering from the bottom of the needle, but leaving a suflicient uncut portion of the enlargement t at the top thereof to maintain the strength of the parts. As in the case of the friction tongue 5, the friction tongue may be either curved as shown in Fig. 3, or straight as shown in Fig. 7, but in each case the friction tongue is laterally defiected with respect to the shank of the needle to engage the side walls of the groove in which the needle plays.

In some cases I may bend the bottom of the needle 4 and the friction tongue symmetrically apart with respect to the central plane of the needles, as shown in Fig. 7.

What I claim is:

1. A knitting machine needle having a butt forming one member of an angular compressed` area near one end of the needle, and a `friction tongue formed from an eX- -cised part of said compressed area and having one endintegral therewith.

2. A knitting machine needle having a butt and shank joining each other at an angle and flat between planes parallel to that of said angle, and having a friction tongue integralwith the shank,.separated from the adjacent portion thereof by a shear cut, and laterally deflected with respect to the plane of the said angle.

3. In a needle for knitting machines having a shank and butt formed from a flattened single bend of a wire blank, afriction tongue comprising a portion of the iiat wire blank partly sheared away from the remainder and bent at an angle to said remainder. y l

4. In va needle for knitting machines, a friction device comprising a flat parallelsided integral part vof the needle positioned to engage the guiding groove of the usual needle-carrier, said part having therein a split or cut separating a portion of said part from the remainder, said portion being deflected out of line with the remainder ol the needle.

5. A knitting machine needle comprising ashank having a solid butt, and a movable tension member extending upwardly above the butt integral therewith and situated in front of the'shank.

6. A knitting machine needle comprising a shank having a solid butt, and a flexible tension member extending upwardly above the butt integral therewith and situated in front of the shank. y

7. Aknitting machine needle comprising a shank having a solid butt, and a tension member extending upwardly above the butt integral therewith and situated in front of the shank and having a portion situated out of the plane'of the shank to bear against the wall of the grooveroi' the cylinder. C

In testimony whereof, I have signed my name to this specification in thep'resence oi' -two subscribing witnesses.

y ROBERT W. SCOTT. y lrVitnesses:

MARY F. GRIFFIN, RUTH A. ROPER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

